Intel Core i9 9900K 's Advantages
Released 3 years and 2 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (41.6GB/s vs 34.1GB/s)
Higher base frequency (3.6GHz vs 3.5GHz)
Larger L3 cache size (16MB vs 6MB)
Intel Core i5 6600K 's Advantages
Lower TDP (91W vs 95W)